“强拉、短控、长注”三位一体耦合支护技术的实践

Practice of Trinity Coupled Support Technology of "Strength, Short Control and Long Injection"

针对李村煤矿1303工作面非充分稳定覆岩条件下沿空巷窄煤柱受多次动压形响难以控制的问题,提出了采用“强拉、短控、长注”三位一体耦合支护技术来控制窄煤柱稳定性。实测结果表明该耦合支护技术能有效维护煤柱整体的稳定性。

Aiming at the problem that narrow coal pillars along goaf are difficult to be controlled by multiple dynamic pressure shaping under the condition of insufficient and stable overburden in Licun Coal Mine 1303 working face,a three-in-one coupling support technology of"strong pulling,short control and long injection"is put forward to control the stability of narrow coal pillars.The measured results show that the coupling support technology can effectively maintain coal.